Electric-arc lamp



No. 607,589. Patented July l9, I898. l. H. 1-. HAINES.

ELECTRIC ARC LAMP.

(Application filed Oct. 2?, 1896. Renewed May 12, 1898.)

(No Model.) 2 Sheets-Sheet l.

Fig.1- 13 .B S- G Z Z Q/ WITNESSES Y mm! ran WM \w W Jb/zn IEaZ neS 1 fI .4 TTURNEY (No Model.)

WI T/IESSES l. H. 1. HAINES.

ELECTRIC ARC LAMP.

Patented luly l9, I898.

(Application filed Oct. 29, 1806. Rvuowod May 12. 1X98) 2 Sheets-Sheet2.

: F54. mm/ron I JJhIZEJEZUT/GS A TTOIll/EY (ll? 'Nltlii YORK, N. Y.,ASSIGNOR- TO 'llill Ohiifilil, Oi JEl-KSEY Cl'iY, NE\V JERSEY.

llAlN ES ELECTRlC-ARC LAM P.

rs Patent No. 607,589, dated July 19, 1898.

-t of Le Yorl; and a, certain W31) on consists in the a n ngcrnent lull;describe. and set s which form ure 1 repree-laanp coninvention, partsbroken away. Fig. he parts in worle "rm the ringon thereof. \"iGW ofaper shows a modificaannrtialiy seethe soienohbcme. main operatingseotiomechanism in tsgcnenal feanature of the .ehanisin, however, an evenfeed, since e iwwould not grip A nuiieates the base of the is n'iounteuth e iranio l3.

ingne't, here in the form of a solenoid, which mounted upon the frame1;. l) the core of said solenoid.

E is a dash-pot pivoted to a projection on the frame l3. Upon the framel3 is pivoted the open frame-lever G, common in are lamps, one end ofthis lever being connected to the piston of the dash-pot and the otherend to the core of the solenoid. These are all old and well-knownfeatures.

The connection between the core D and the lever G, as shown in 7, is oneof the novel features of this invention. It is common to provide aresilient connection between these two parts, but this is an improvementupon those connections nowin use. In the lower end of the core issecured the socket ll, in which is located the stern I of the elesis J.Upon this stem is formed. or secured a collar K, and between this collarand the ends of the socket ll are placed spiral springs, as indicated.In this manner the resilient connection between the lever G and the coreare safely housed. The upper portion of the core consists of a bundle ofiron wires L, which are placed within the insulated jacket of the coreand held therein in any suitable way. One wa which 1 have adopted forsecuring them in place is to pour in aniongtheni some silicate of soda,which binds them together en mouse.

M indicates the carbon-rod, which reciproc tes vertically 'tliirough theplate A. and the bracket 1.7 passing through a tube N, which ispreferably secured to the under side of the plate A and projectsupwardly around the carbon-rod, as indicated. About the tube N is placedit plate 0, having a collar 1 serving as a guide therefor upon saidtube. This plate carries weights, as indicated at Q, for the purposehereinafter described. Above the collar 1 and also located about thegnide-tube N is a collar R, which carries at its upper end a platform S,which serves as the tripping-place for the ring-clutch T. Arising fromthe plate 0 is a tubular projection U,- which rests under the platform Sand has connected to the upper end a lip V, extending over the upperedge of the ring T.

Secured in the plate A. and extending up through the tubular post 'U andplatform S is a post lV, which projects slightly above the platform Swhen the parts are in their normal position of rest. Secured to theplatform S diametrically opposite to the post 1V is a stud or projectionX, "upon which the ring T normally rests. Upon the sides of the frame G,I secure studs Y, preferably provided with antifrictiou-rollers, whichengage the under side of the platform S and serve to lift the same asthe solenoid-core is drawn into the ternating-current lamp. It isobvious, how

ever, that it may be applied to adirect-current lamp by making the usualchanges in the location of the magnet, as well understood byelectricians. l p

The circuits of alternating-arc lamps being so well lil10\\'11 {ll1d notentering into the features of the present improvement have not beenindicated in'the drawings.

The operation of the parts above described is as follows: The carbonsbeing together, as usual in altcrnating-current lamps, upon currentbeing turned on the core I.) will be drawn into the helix, and as itrises it will carry up the platform S, and as the ring rests at one edgeupon the stud X it will be tilted and will clutch the rod M and carrysaid rod with it in the further movement of the core D. As the ring Trises the weighted plate 0 will be raised thereby, because of the lip Vengaging with the edge of the ring, and as said lip engages with thering at a point opposite to the stud Kit is clear that the weight thusimposed upon the ring will add to the clutch action thereof upon therod. Then as the core I) descends the ring T will Iirst meet with theplatform S and then with the upper end of the post \V, and as the rodgradually descends the angle of the ring will be decreased until itsgrip upon the rod is loosened suilicicntly,

to allow the carbon to feed. Then when the are is suiliciently shortenedthe core will ascend and cause the ring to again grip the rod andprevent the further descent thereof. As .the sleeves l and R are guidedin their vertical movement by the tube N they are prevented from addingfriction to the movement of the carbon-carrying rod, said rod being leftand the ring may be formed in to the sole action thereon of the ring '1.

W'o have now come to the special construction of the ring T by which ithas been made practical. Said ring has formed upon its inner periphery araceway in which are located antifriction devices for engagement withthe em'bon-earrying rod. These antifriction devices may be in the formof rollers or balls, any suitable manner to contain these rollers orballs; but it has been found in practice that the best mode ofconstruction of this ring consists in forming it in two parts fl and 10,the inner pc- .lines at 12 ri'pheries of which are cut at an angle ofapproximately forty-five degrees, and these two parts are securedtogether in any suitable manner, as by the screws shown in Fig.1. Thesetwo plates are also countersunk near their inner periphery, and in thecountersink is located a ring 11, whose diameter is sailiciently lessthan that of the inner edge of the inclined surfaces of the raceway toprevent the balls 12from touching both inclined surfaces of the racewayat the same time, as shown in Fig. 5. This prevents any wedging actionthat might take place between the balls and said inclined surfaces. Inthe gripping action of the balls upon the carbon-earryingrod they restbetwecnsaid rod, the lower plate 10, and the ring 11, as indicated indotted thereby providing the necessary frictional cont-act and yetpreventing any possibility of the balls being wedged between thesurfaces engaging them. It is also preferable to make the ring 11somewhat smaller than the countersink in which it is placed, so that itmay have sufficient lateral movement to adjust itself to. the balls asthe clutch ring changes its angle to the carbon -rod.' This movabilityof the ring 11 also insures keeping the ballsfrec in the raceway, as itwill prevent any tendency the ballsmay have to'em bed themselves uponthe plate 10. The movability of the ring W about the carbon-carrying rodwill also assist in preventing the hails from wearing grooves .orchannels in said rod. The inner edge of the ring 11 may, if desired, bemade angular, as indicated indotted lines in Fig. 5, so as to presentless frictional surface to the balls. The ball raceway may also be soshaped or formed as to retain the balls therein, thereby enabling themto be assent bled in the ring before the ring ispvut' into the lamp.()nc wayof doingthis is shown in Fig. 6, wherein the thin edge of theraceway is shown as turned down against the innersurface of. the seriesof balls.- The plates 9 and 10 may be turned in this. shape, or the saidedges may be rolled down as found most expedient in manufacture.

The use of the balls in the manner-just dcscribed is more than the moreadaptation of antifriction devices to thd old ring-clutch. Thisconstruction provides for engaging the rod at a series of points withrounded surfaces of rolling parts, thereby taking a lirm hold of the rodwithout biting into it. In the old ring-clutch the engagement with therod is by opposite rigid angular surfaces and no uniformity of pressurecan be relied upon. Then, too, in the present construction a slightincrease in the pressure upon the rod will allow the balls to rollslightly and the rod to feed in proportion to the freedom with which theballs are allowed to move. The control of the rod isjbythismeaus soalmol-ulelyuniform that the movement of the carbon is imperceptible tothe eye.

In addition to the features above described improvements have also beenmade in the construction of the hood. As before stated, the bracket 1 issecured to the plate A. Then into the upper end of this bracket isturned a screw-threaded tube 13. The cap-plate 14 is preferablyconstructed of cast metal and made to slip freely over this tube and torest upon the upper end of the bracket B. A jttll1-l1l'ii, as 15, uponthe tube 13 is then turned down tightly against the cap and the shield-16 placed around a projection upon the cap 14., snitabicholes, as 17,being formed th rough the cap within the tube 16 for the passage of theconductors, indicated in Fig. 1. By constructing the lamp in this formthe cap ll and the plate A. serve to supportthe lamp while in the courseof manufacture or during repairs, so that no weight or strain can bebrought to bear upon the feeding mechanism.

The cyli idrical jacket 18 is made to enter within adownwardly-projocting flange upon the cap 15 and has preferably formednear its lower edge a bead, as shown, which engages with the under edgeof the plate A. Then to hold this jacket in place buttons, as 1.), maybe pivoted to the under surface of plate A, as indicated. \Vith thisconstruction it is an easy matter to at the feeding mechanism the lamp.To do this, it is simply necessary to drop the globe, turn the but tonsill, and lower the jacket 18.

Many changes in the form and construction of the part: eseribed andillustrated maybe made aside .roin those above mentioned wit. outdeparting from my invention.

lVhile ,l have described my improved clutch as applied to an electriclamp, 1 do not limit myself to such use, but claim the same, broadly, asa new mcclmnical device.

What 1 claim as my invention is 1. In an Ol(}Cf.ll'u-2ll'(3 lamp, adetached tilting clnr freely mo vablc about its axis and provide .n itsinner periphezj w th rotary friction devices, for the purpose set forth.

l an electrical-c lamp, a tilting clu grow with a raceway 0 its innerper phand of balls located in said raceway, as and for the purpose setforth.

I In an elcctricarc lamp, a tilt clutch consisting of two plates inwardlbeveled on their inner periphery to form a r: coway and sccurcdt gethcr,and a scr es of balls located in said raceway.

l. A clutch for arc-hoops consisting of a series of balls and a tiltingring provided with. ball-raceway on its inner poriphcrj formed by twoinwardly-inclined surfaces se 'iaratcd by a surface of sullicienlly lessdiameter than the inner periphery of the inclined surfaces to preventthe balls from sin'iuilancously engaging both i lined surfaces, :as andfor the purpose set forth.

5. A clutch for arc-lamps consisting of a series of balls and a -l g:ring formed of two plates inwardly beveled. on their ncr pcripln. :ndaring;loosclyinsortcilbet en the me f the tilting ring and havingsulliincntly less than.

that of the inner edges of the beveled surfaces to hold the balls fromsimultaneous engagement with both beveled surfaces.

6. A clutch for an are-lamp consisting of a series of balls and atilting ring formed of two imvardly-bevelcd countersunkplates, and aring mounted in the countersink and of such internal diameter as to keepthe balls from simultaneous engagement with both of said plates, as andfor the purpose set forth.

'7. A clutch for an arc-lamp consisting of a tilting ring formed of twounited plates each provided with an undercut groove on. its innerperiphery, and a series of balls confined in the raceway formed by saidgrooves.

8. In an arc-lamp, the combination of a tilting clutch freely movableabout its axis and provided on its clutching-sin fa cc with rotaryfriction devices, a movable platform. under said clutch, means on theplatform for tilting the clutch, and means controlled by the current ofthe lamp for raising and lowering the platform.

l). The combination with the carbozrcarrylug rod, the ring-clutch, theplatform, and

means thereon for tilting the clutch, of means for raising and loweringthe platform and ring, and apart .ilxcd in the path of the clutch fortrippihg it.

10. In an arolamp, the combination of the detached riu g-clutch freelymovable about its vertical axis, means for tilting-and lifting theclutch, a weight normallyout of engagement with the clutch but assumedthereby as the clutch is lifted, and a tripping device for the clutch,substantially as and for the purpose set forth.

ll. The combination wi h the carbon-car rying rod, of the ring-clutch,the platform having a projection engaging one edge of the ring, meansfor raising the platform, a movable weight for engaging the ring at theedge opposite said projection, and means for tripping the ring,substantially s set forth.

l2. In an are-la1np, the combination of the detached ring-clutch freelymovable about its axis, the verticallymovable platform supporting theclutch and provided with means for lilting it, the tripping device, thelever loosely engaging the platform, and the electromagncl: for tiltingsaid lever, as and for the purpose set forth.

l3. Thecombination with the solenoid-core provided with the socket inits end, of the *lcvis having its shank located in said socket, andprovided with a collar or projection, and springs engaging the saidcollar or projection and the ends of the socket, as and for the purposeset forth.

ll. A tilting ring-olnloh having a number of freely-moving ballseonlincd in a raceway on its innerperiphery, as and for the purposedescribed.

7.5. A balhcluteh having a loose ring or washer inserted in thebail-race.

ll Anantifrictiowball race, havinga loose ring or washer of slightlyless diameter than ITO - said socket,

the mean diameter of the raceway, for the purpose set forth,

17. The combination With the solenoid-core, provided with a socket inits lower end, of the feeding-lever, and a connection between the coreand said lever-spring seated within substantially as and for the purposeset forth.

18. In an arc-lamp, the combination of the detached ring-clutch freelymovable about its vertical axis and providedon its inner periphery withrota friction devices, means for tilting and lifting the clutch, aweight I normally out of engagement with the clutch but assumed therebyas the clutch is lifted, and a tripping device for the clutch,substantially as and for the purpose set forth.

Signed at New York, in the county of New York and State of New ofOctober, A. D. 1896.

JOHN H. J. HAINES." Witnesses:

WM. H. GAPEL, D. H. DECKER.

York, this 26thday v

